Navigation Links
Progress Reported in Predicting Alzheimer's
Date:1/19/2011

By Randy Dotinga
HealthDay Reporter

TUESDAY, Jan. 18 (HealthDay News) -- Researchers report promising results for a scanning test that aims to reveal the presence of Alzheimer's disease, potentially allowing doctors to try to treat the illness in its early stages. Another study finds that blood tests could indicate higher risks of dementia later in life.

But there's a catch: Alzheimer's disease is not curable, and existing treatments only have limited effects.

Even so, the ability to precisely diagnose Alzheimer's disease during life, which is now impossible, could lead to improved research, said memory specialist Dr. Anton P. Porsteinsson, a psychiatry professor at the University of Rochester School of Medicine, who was not involved with the studies.

The findings, published Jan. 19 in the Journal of the American Medical Association, "may have much more relevance" in the future, Porsteinsson said. "Basically, this is a step in the process."

Currently, doctors correctly diagnose Alzheimer's disease about 85 percent of the time, Porsteinsson said. The illness can be confirmed only through brain analysis after death. Even with existing scanning technology, "we can't see individual cells or what's going on," he said. "We can't see the functional impairment that happens," he added.

In one of the new studies, researchers led by a team from Avid Radiopharmaceuticals reported that they were able to find signs of Alzheimer's disease by using PET scanning technology. They had scanned 35 people who appeared to have the disease before their deaths and looked for signs of beta amyloid, a kind of gunk that clogs the brain in people with the illness.

The other study attempted to measure levels of beta amyloid in the blood. It linked lower levels -- a sign that the gunk is getting tied up in the brain -- to higher cognitive problems in 997 elderly people over a nine-year period.

The researchers also found that people with higher levels of "cognitive reserve" -- such as those with higher levels of education and literacy -- seemed to be buffered against dementia, said the study's lead author, Dr. Kristine Yaffe, a psychiatrist and professor at the University of California, San Francisco.

"The fascinating implication is that if you identify those at risk, maybe you could do something like cognitive stimulation to mitigate the risk," she said.

For now, though, "the markers reported here are far too unspecific to distinguish between people who will and will not get the disease," said Dr. Monique M.B. Breteler, an epidemiologist with University Medical Center Rotterdam in the Netherlands who wrote an accompanying commentary. "The importance of this paper is that it shows that there are detectable signals in blood that are related to the later development of the disease."

As for cost, Porsteinsson said the expense of the blood tests may go down. As to the other study, "the cost for the PET scans will always be pretty high because you've got to have such expensive tools."

More information

The U.S. National Institute on Aging has more on Alzheimer's disease.

SOURCES: Anton P. Porsteinsson, M.D., professor, psychiatry, University of Rochester School of Medicine, Rochester, N.Y.; Kristine Yaffe, M.D., endowed chair in psychiatry, University of California, San Francisco, and chief, geriatric psychiatry, San Francisco VA Medical Center; Monique M.B. Breteler, M.D., Ph.D., head, neuroepidemiology section, University Medical Center, Rotterdam, the Netherlands; Jan. 19, 2011, Journal of the American Medical Association


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Walking slows progression of Alzheimers
2. New STD Report Finds Some Progress, High Costs for U.S.
3. New indicator found for rapidly progressing form of deadly lung disease
4. Insufficient vitamin D levels in CLL patients linked to cancer progression and death
5. Stereotactic radiotherapy slows pancreatic cancer progression for inoperable patients
6. Surprise finding: Pancreatic cancers progress to lethal stage slowly
7. Neuralstem updates ALS clinical trial progress
8. Afatinib benefits lung cancer patients whose cancer progressed after treatment with EGFR inhibitors
9. Diabetes gene linked to degeneration of enzyme involved in Alzheimers disease onset and progression
10. Phase III study shows everolimus delays tumor progression in hard-to-treat neuroendocrine tumors
11. Adding topotecan to standard treatment for ovarian cancer does not improve progression-free survival
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Progress Reported in Predicting Alzheimer's
(Date:12/2/2016)... ... December 02, 2016 , ... ‘Tis the season for giving! Today, 20 creative ... National Family Partnership and the Drug Enforcement Administration as part of the National Red ... 10 winning schools who decorated their campuses with this year’s Red Ribbon Week theme: ...
(Date:11/30/2016)... , ... November 30, 2016 , ... ... they now offer a comprehensive in-house dental plan for all patients. Understanding that ... a plan that gives patients a number of perks, including discounts on many ...
(Date:11/30/2016)... ... November 30, 2016 , ... ... Deloitte Wisconsin 75, an annual ranking and recognition of the largest closely held ... list, having ranked from 2008-2016. In addition, Standard Process was awarded the Talent ...
(Date:11/30/2016)... ... November 30, 2016 , ... Center For ... announced the opening of a new residential mental health treatment program in Chino ... issues such as severe anxiety, depression, bi-polar disorder, and other related issues. , ...
(Date:11/30/2016)... ... November 30, 2016 , ... ... and stylish design wanted by today’s consumers at an affordable price, is now ... says the new watch is “a game changer” when it comes to the ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... 2016 bioLytical Laboratories, un líder mundial en test rápidos ... HIV Self Test , a los miembros de la Kenya Pharmaceutical Association. ... ... INSTI HIV Self Test! (PRNewsFoto/bioLytical Laboratories) ...      (Photo: http://photos.prnewswire.com/prnh/20161201/444905 ) bioLytical fue invitada por la ...
(Date:12/2/2016)... GARDENS, N.Y. , Dec. 2, 2016  LifeVac, ... will be included in the Emergency Response Training and ... are very excited to have LifeVac become part of ... Lih , Founder and CEO of LifeVac. "Having an ... LifeVac safely and effectively will help leverage our efforts ...
(Date:12/2/2016)... India , December 2, 2016 ... report "In Vitro Diagnostics/IVD Market by Product (Instruments, ... Hematology), Application (Diabetes, Oncology, Cardiology, Nephrology, Infectious Diseases) ... global market is valued at USD 60.22 Billion ... at a CAGR of 5.5% during the forecast ...
Breaking Medicine Technology: